Lab tested research peptides, >99% pure by HPLC-MS
Lab tested research peptides, >99% pure by HPLC-MS
HPLC-MS VERIFIED · >99% PURITY · FOR RESEARCHERS IN THE USA
Polaris Peptides supplies 62 research compounds, from semaglutide, tirzepatide and retatrutide to BPC-157, TB-500 and GHK-Cu. Every batch is checked by HPLC-MS before it is listed, then lyophilised and vacuum-sealed. It is the simplest way to buy peptides USA labs can verify against the label.
62
research compounds
>99%
purity by HPLC-MS
9
research areas
BATCH CHECKED · LYOPHILISED · VACUUM-SEALED
01 — CATALOGUE
Nine collections, each with a plain-English overview, specifications and FAQs. Pick the area you are studying and compare compounds side by side.
21 COMPOUNDS
Semaglutide, tirzepatide, retatrutide, cagrilintide, mazdutide and survodutide.
24 COMPOUNDS
The GLP-1 range plus AOD-9604, MOTS-c and setmelanotide.
11 COMPOUNDS
BPC-157, TB-500, GHK-Cu, KPV, LL-37 and the GLOW and KLOW blends.
6 COMPOUNDS
Ipamorelin, CJC-1295 no DAC, tesamorelin, sermorelin and IGF-1 LR3.
7 COMPOUNDS
Epithalon, MOTS-c, SS-31, FOXO4-DRI, NAD+ and glutathione.
4 COMPOUNDS
N-acetyl semax amidate, N-acetyl selank amidate, PE-22-28 and DSIP.
5 COMPOUNDS
Thymosin alpha-1, thymulin, LL-37 and KPV.
13 COMPOUNDS
Melanotan I and II, PT-141, GHK-Cu, Snap-8 and copper peptide powders.
7 BLENDS
GLOW, KLOW, TB-500/BPC-157, CJC-1295/ipamorelin and CagriSema at fixed ratios.
02 — SHOP BESTSELLERS
Prices shown are for a single vial. Every product also comes in packs of 2 to 20 vials that save up to 30% — choose a pack size on the product page.
03 — QUALITY
STEP 01
MS weighs the molecules in a sample and confirms the main compound really is the peptide on the label, not a truncated sequence or a look-alike.
STEP 02
High-performance liquid chromatography separates the sample so we can measure how much is target compound. Batches under 99% are not sold.
STEP 03
Passing batches are freeze-dried into a stable powder, sealed to keep moisture out and labelled with the exact amount per vial.
04 — THE BASICS
Peptides are short chains of amino acids, usually between 2 and 50 units long. Many act as signals in the body: hormones like GLP-1, growth hormone releasing hormone and alpha-MSH are all peptides. Research peptides are synthetic versions or analogues of these molecules, made by solid-phase synthesis so scientists can study how they work in cell culture and animal models.
Because results depend on knowing exactly what is in the vial, purity and identity testing matter more than anything else when you choose a supplier. A 95% pure vial can carry enough truncated sequences to change an experiment's outcome. That is why every compound at Polaris Peptides is held to an HPLC-MS standard of over 99%.
Our catalogue covers the compounds researchers ask for most, from GLP-1 peptides to healing peptides and anti-aging compounds. Every product page lists the compound class, CAS number, molecular formula, storage conditions, a reconstitution guide, published research and multi-vial pricing, so you can check the science before you order. All products are lab tested peptides sold for laboratory research only.
05 — BUYER'S GUIDE
Not every vial labelled 99% really is. Before you pick a peptide supplier in the USA, run through these three checks. They take a few minutes and can save a whole study from bad material.
CHECK 01
Look for two methods, not one. HPLC measures purity, while mass spectrometry confirms identity. A high purity figure on its own does not prove the right molecule is in the vial.
CHECK 02
The vial should name the compound and state the exact amount. Vague or handwritten labels make it impossible to trace a result back to the material you actually used.
CHECK 03
Peptides keep best as freeze-dried powder in a sealed vial. Loose powder, broken seals or liquids that arrive warm are warning signs that the peptide may already have degraded.
We built our range around those same checks: HPLC-MS on every batch, clearly labelled vials and lyophilized powder that is vacuum-sealed before it ships. Browse the full catalogue to compare specifications side by side.
05 — FAQ
Quick answers about ordering, testing and storage. Each product page has its own detailed FAQ.
Browse peptides for sale →What is Polaris Peptides?
Polaris Peptides is an online supplier of research peptides for researchers in the USA. We stock 62 compounds across nine research areas, each tested to over 99% purity by HPLC-MS and supplied lyophilised in vacuum-sealed vials.
Where can I buy peptides in the USA for laboratory research?
You can order directly from the Polaris Peptides shop. Browse by research area, compare strengths and check each compound's specifications, CAS number and published research before you buy.
How does Polaris Peptides test purity?
Every batch goes through high-performance liquid chromatography (HPLC) to measure purity and mass spectrometry (MS) to confirm identity. Only batches above 99% are listed for sale.
Which research peptides are most popular?
Semaglutide, tirzepatide and retatrutide lead our GLP-1 range. BPC-157, TB-500 and GHK-Cu are the most requested healing and recovery peptides, and the GLOW and KLOW blends are our best-known combinations.
How should research peptides be stored?
Keep lyophilised vials at −20 °C. After reconstitution, store at 2–8 °C and use within 28 days. Protect copper peptides and NAD+ from light.
Are Polaris Peptides products for human use?
No. All products are sold strictly for laboratory and in-vitro research. They are not drugs, foods or cosmetics and are not for human or veterinary use.
All products sold by Polaris Peptides are for laboratory research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure or prevent any disease. These statements have not been evaluated by the FDA.
